02_NPT015_Technicals_100p_20251027.pdf

SECTION IV

GENERAL CONSTRUCTION ITEMS

CERTIFICATION PAGE

The documents for this Project were prepared by me or under my direct supervision:

Technical Specifications: E-020, C-102, C-105, E-906, P-152, T-901, E-800, L-108, L-109, L-110, E-130

Pages or sheets covered by this seal:

Drawings: 1-15, 18-32*, 33-35

*Note: Professional engineering elements required to implement the Large Onsite Septic System

(L.O.S.S.) design developed by others.

The Large Onsite Septic System (L.O.S.S.) designed by Environmental Management Systems, Inc. - Robert F. Sweeney.

Drawings: 18-32

NEWPORT MUNICIPAL AIRPORT

LARGE ONSITE SEPTIC SYSTEM (L.O.S.S.)

Geoff Vaughn

PRECISION APPROACH ENGINEERING, INC.

October 2025

CERTIFICATION PAGE

The documents for this Project were prepared by me or under my direct supervision:

Pages or sheets covered by this seal:

Drawings: 16-17

NEWPORT MUNICIPAL AIRPORT

AIRPORT LARGE ONSITE SEPTIC SYSTEM (L.O.S.S.)

Michael Beanland

WILLAMETTE POWER ENGINEERING, INC.

October 2025

NON-FAA SPECIFICATION TO ACCOMPANY 5370-10H

NPT015, Large Onsite Septic System 1 E-020 General Requirements

ITEM E-020 GENERAL REQUIREMENTS

020-1.1 This item shall consist of preparatory work, furnishing submittals, and other operations, including, but not limited to, work necessary to set up barricades, complete utility locates; set up and dismantle all temporary offices, buildings, facilities, and utilities; and perform site restoration and cleanup. This item shall also include all items required for construction phasing and safety during construction of this project, whether specified on the drawings or not. In addition, included shall be all costs associated with shutdowns outlined on the drawings or shown in the specifications. No additional compensation shall be due Contractor for planned shutdowns.

020-1.2 This item shall also include all work required for construction layout and staking, as well as location or identification of existing utilities.

020-2.1 LOCATION AND DRAWINGS.

a. Location. The location of the work is at the NEWPORT MUNICIPAL AIRPORT, NEWPORT, OREGON. A vicinity map is shown on Sheet 1 of the Drawings.

b. Drawings. The Drawings for the construction of “ LARGE ONSITE SEPTIC SYSTEM (L.O.S.S.)” consist of 35 sheets and dated October 2025.

020-3.1 DISPOSAL. All materials shall be disposed of offsite, unless otherwise shown on the drawings. Arrangements for the disposal of all other materials shall be made by the Contractor. No direct payment will be made for disposal of unused materials.

020-4.1 SITE INVESTIGATION AND REPRESENTATION. The Contractor acknowledges that they have satisfied themselves as to the nature and location of the work, the general and local conditions, particularly those bearing upon availability of transportation, disposal, handling, and storage of materials, availability of labor, water, electric power, roads, and uncertainties of weather, river stages, or similar physical conditions at the site, the conformation and conditions of the ground, the character of equipment and facilities needed preliminary to and during the prosecution of the work, and all other matters which can in any way affect the work or the cost thereof under this Contract.

a. The Contractor further acknowledges that they have satisfied themselves as to the character, quality, and quantity of surface and subsurface materials to be encountered from inspecting the site, all exploratory work done by the Owner, as well as from information presented by the Drawings and Specifications made a part of this Contract. Any failure by the Contractor to acquaint themselves with all the available information will not relieve them from the responsibility for properly estimating the difficulty or cost of successfully performing the work.

b. The Contractor warrants that as a result of their examination and investigation of all the aforesaid data, they can perform the work in a good and workmanlike manner and to the satisfaction of the Owner. The Owner assumes no responsibility for any representations made by any of its officers or agents during or prior to the execution of this

Contract, unless (1) such representations are expressly stated in the Contract, and (2) the Contract expressly provides that the responsibility therefore is assumed by the Owner. Representations for which liability is not expressly assumed by the Owner in the Contract shall be deemed only for the information of the Contractor.

c. Dewatering. It is anticipated that dewatering will be required to lower the water table, remove standing water, or lower the moisture content of soils encountered to achieve workability and compaction. In addition, dewatering may be required to properly grade ditches, lay pipe or cable in trenches, or for making foundations suitable for embankment or base materials. Soft or yielding materials which can be stabilized by dewatering shall not be classified as unsuitable foundation. No direct payment for dewatering shall be made and all costs incurred shall be considered as incidental to the appropriate bid items.

020-5.1 FIRE PREVENTION AND PROTECTION. The Contractor shall perform all work in a fire-safe manner. They shall supply and maintain on the site adequate fire-fighting equipment capable of extinguishing incipient fires. The

Contractor shall comply with applicable local and state fire prevention regulations and where the regulations do not cover, with applicable parts of the National Fire Prevention Standard for "Safeguarding Building Construction

Operations," (NFPA No. 241).

NPT015, Large Onsite Septic System 2 E-020 General Requirements

020-6.1 GENERAL CONSTRUCTION RESPONSIBILITIES AND PROCEDURES.

a. Haul Routes and Maintenance. Any haul roads and access roads shall be constructed by the Contractor at their expense. The Contractor shall perform all necessary maintenance of haul routes during construction and shall perform all work as necessary to restore the routes used by their equipment to their original condition at the conclusion of construction. New roadways shall be obliterated and original vegetation reestablished. Existing roadways, runways, taxiways, and aprons shall be patched or overlaid as necessary to restore them to original condition.

Haul routes shall be sprinkled with water as necessary to prevent dust diffusion during the course of the work. Should soil conditions require gravel placement to maintain a satisfactory haul road, it shall be done at the Contractor's expense.

Turfed areas surrounding roadways, runways, taxiways, and aprons that are disturbed as a result of the Contractor's operations shall be restored to their original condition.

All maintenance and restoration work shall be completed to the RPR's satisfaction before final payment is awarded. No direct payment will be made for this work.

b. Responsibility for damage to existing structures. Where any existing structures or facilities which are intended to remain are damaged by the Contractor during demolition or construction, the Contractor shall promptly repair or replace the damaged portion or facility at their expense.

MATERIALS

020-7.1 SUBMITTALS AND CERTIFICATIONS. As required by the Specifications or shown on the Drawings, the

Contractor shall submit material submittals, furnish shop drawings, and furnish material certifications.

a. The date when the Contractor provides the submittal(s) to the RPR shall be included in the Contractor’s project schedule. All submittals shall have assigned due dates that correspond with approved schedule start dates for related activities allowing a minimum fifteen (15) calendar days, or otherwise specified in the Specifications, for the RPR’s review as well as adequate time for fabrication and delivery of the material. The RPR shall not be held responsible for late or inadequate submittals provided by the Contractor. Materials shall not be incorporated into the work without the submittal, shop drawing, or material certification reviewed by the RPR.

b. Prior to submission, the Contractor shall review each submittal and indicate with signature on an original letter that they have reviewed and approved the submittal and that it conforms to the Contract Documents. If this original letter is not included, the submittal and/or shop drawing will be returned without any action by the RPR.

Submittal data shall be presented in a clear, precise, and thorough manner. Original catalog sheets are preferred, however, photocopies are acceptable provided they are of good quality and legible. The Contractor shall clearly and boldly mark each copy to identify pertinent products or models applicable to the project. At the time of each submittal, the Contractor shall identify any proposed deviations or substitutions from the Contract Documents.

Review by the RPR is only for conformance with the Contract Documents. Review does not cover dimensions, quantities, accuracy, fit, compatibility or any assembly for which the item under review may be a component. Review action does not authorize deviation from Contract Documents or substitution of materials.

c. The RPR will complete the review within a reasonable period of time depending upon the size, complexity and number of submittals received. Every effort will be made to review submittals within ten (10) calendar days of receipt by the RPR, however, the RPR will not be responsible for any project impacts should the review period exceed the ten (10) calendar days.

020-7.2 TEMPORARY FACILITIES. The Contractor shall provide all temporary facilities as required for performing the work.

020-7.3 TEMPORARY WATER. The Contractor shall make all arrangements for obtaining water and pay all costs for same. Water shall be potable water obtained from a municipal source or well. The use of reclaimed water is not allowed.

The use of additives, such as chemicals, abrasive materials, detergents, or salt water is not allowed.

NPT015, Large Onsite Septic System 3 E-020 General Requirements

020-7.4 TEMPORARY ELECTRIC POWER. The Contractor shall make all arrangements for electric power for use during the construction period until final acceptance by the Owner, and pay all costs for same.

020-7.5 SECURITY FENCING. Construct a temporary security fence around the Contractor's staging area. Maintain the fence during construction period and provide security for the Contractor's existing materials and facilities.

020-7.6 PARKING FACILITIES. Provide parking facilities for personnel working on the project. Employee or equipment parking will be permitted only in areas specifically designated for the Contractor's use. No employee-owned vehicles shall be permitted within the airside area of the airport.

020-7.7 RECORD DRAWINGS. The Contractor shall maintain a set of drawings on site noting changes in project layout, details, and other information shown on the drawings. Record drawings shall contain the names, addresses, and phone numbers of the Prime Contractor and Subcontractors used.

020-7.8 CONSTRUCTION LAYOUT AND STAKING. The Contractor shall perform all activities necessary to control the many phases of work required to construct the Project to the lines and grades as shown, established, or specified in the Specifications or shown on the Drawings.

020-7.9 CONTRACTOR'S STAGING AREA. An area has been set aside on the Owner's property for the Contractor's use as a staging area for personnel, equipment, and materials. The approximate site location is shown on the Drawings.

The RPR will define the actual location in the field. In the event additional space is required for the Contractor's operations, the Contractor shall make arrangements with the Owner. The staging area shall be kept in a neat and orderly condition. The area shall be restored to its original condition at the conclusion of the work.

020-7.10 SAFETY PLAN COMPLIANCE DOCUMENT. The Contractor shall submit and comply with a Safety Plan

Compliance Document (SPCD) to ensure all work is performed in manner meeting airfield safety requirements.

020-7.11 RADIO. The Contractor shall provide a minimum of one radio, one carried by the safety officer and the other by the Superintendent, unless otherwise agreed to with the RPR and Owner. The radio shall have dual power source; i.e., battery and a car/truck plug in, and be capable of communication on the airport VHF frequency. Radio checks shall be made daily as coordinated with the RPR and Owner.

CONSTRUCTION METHODS

020-8.1 LAYOUT OF TEMPORARY FACILITIES. Set up construction facilities in a neat and orderly manner within designated area. Accomplish all required work in accordance with applicable portions of these Specifications, or as approved. Confine operations to work area shown.

020-8.2 OBSTRUCTIONS. Some obstructions may not be shown. Bidders are advised to carefully inspect the existing facilities before preparing their bids (proposals). The removal of minor obstructions such as rocks and other debris shall be anticipated and accomplished, even though not shown or specifically mentioned.

020-8.3 TEMPORARY SHUTDOWN. The Contractor shall cease operations during periods indicated on the drawings.

During this time, the Contractor shall secure all materials within the staging area, set up barricades, cones, or other safety measures as specified or as directed by the RPR.

020-8.4 RECORD DRAWINGS, TEST RESULTS, SURVEY NOTES AND QUANTITY COMPUTATIONS. At the conclusion of the work, the Contractor shall furnish the RPR with one set of record drawings. This shall be a set of Contract drawing prints accurately marked to reflect current conditions or any changes in geometric layout of project items, changes in details, structure grade and invert elevations, and changes in work that occurred during the course of the project. The Contractor shall provide a report containing all test results, separated by material type as required by the specifications and a copy of all survey notes and computations made in connection with the work to the RPR.

The Contractor shall furnish the RPR with notes of "finish grades" for all improvement in this project. The data shall include as a minimum:

1. Locations, rim elevations, and inverts of new, raised or lowered; cleanouts, and septic structures.

NPT015, Large Onsite Septic System 4 E-020 General Requirements

2. Elevation and location of all survey reference points or any new disturbed, or replaced, benchmark or control point.

3. Any work performed by change order that can be reflected in the Drawings.

The Contractor shall provide a complete summary of all drawings, diagrams, notes, calculations and computations used to determine measurement for pay quantities and submit them to the RPR with each payment request.

Final payment will not be made until the "record drawings", survey data, test results, and all other items under this specification have been submitted.

METHOD OF MEASUREMENT

020-9.1 No direct measurement for work specified under Section GENERAL REQUIREMENTS shall be made.

BASIS OF PAYMENT

020-10.1 No direct payment for work specified under Section GENERAL REQUIREMENTS shall be made. Payment for work specified under Section GENERAL REQUIREMENTS shall be considered incidental to the Contract price.

AC 150/5370-10H, AND ERRATA THROUGH 8/19/2020

NPT015, Large Onsite Septic System 1 C-102 Temporary Air and Water Pollution, Soil Erosion, and Siltation Control

ITEM C-102 TEMPORARY AIR AND WATER POLLUTION, SOIL EROSION, AND SILTATION CONTROL

DESCRIPTION

102-1. This item shall consist of temporary control measures as shown on the plans or as ordered by the Resident

Project Representative (RPR) during the life of a contract to control pollution of air and water, soil erosion, and siltation through the use of silt fences, berms, dikes, dams, sediment basins, fiber mats, gravel, mulches, grasses, slope drains, and other erosion control devices or methods.

Temporary erosion control shall be in accordance with the approved erosion control plan; the approved Construction

Safety and Phasing Plan (CSPP) and AC 150/5370-2, Operational Safety on Airports During Construction. The temporary erosion control measures contained herein shall be coordinated with the permanent erosion control measures specified as part of this contract to the extent practical to assure economical, effective, and continuous erosion control throughout the construction period.

Temporary control may include work outside the construction limits such as borrow pit operations, equipment and material storage sites, waste areas, and temporary plant sites.

Temporary control measures shall be installed and maintained to minimize the creation of wildlife attractants that have the potential to attract hazardous wildlife on or near public-use airports.

MATERIALS

102-2.1 GRASS. Not Used.

102-2.2 MULCHES. Not Used.

102-2.3 FERTILIZER. Not Used.

102-2.4 SLOPE DRAINS. Not Used.

102-2.5 SILT FENCE. Silt fence shall consist of polymeric filaments which are formed into a stable network such that filaments retain their relative positions. Synthetic filter fabric shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of six months of expected usable construction life. Silt fence shall meet the requirements of

ASTM D6461.

102-2.6 OTHER. All other materials shall meet commercial grade standards and shall be approved by the RPR before being incorporated into the project.

CONSTRUCTION REQUIREMENTS

102-3.1 GENERAL. In the event of conflict between these requirements and pollution control laws, rules, or regulations of other federal, state, or local agencies, the more restrictive laws, rules, or regulations shall apply.

The Contractor shall be responsible for assuring compliance to the extent that construction practices, construction operations, and construction work are involved.

102-3.2 SCHEDULE. Prior to the start of construction, the Contractor shall submit schedules in accordance with the approved Construction Safety and Phasing Plan (CSPP) and the plans for accomplishment of temporary and permanent erosion control work for clearing and grubbing; grading; construction; paving; and structures at watercourses. The Contractor shall also submit a proposed method of erosion and dust control on haul roads and borrow pits and a plan for disposal of waste materials. Work shall not be started until the erosion control schedules and methods of operation for the applicable construction have been accepted by the RPR.

NPT015, Large Onsite Septic System 2 C-102 Temporary Air and Water Pollution, Soil Erosion, and Siltation Control

102-3.3 CONSTRUCTION DETAILS. The Contractor will be required to incorporate all permanent erosion control features into the project at the earliest practicable time as outlined in the plans and approved CSPP. Except where future construction operations will damage slopes, the Contractor shall perform the permanent seeding and mulching and other specified slope protection work in stages, as soon as substantial areas of exposed slopes can be made available. Temporary erosion and pollution control measures will be used to correct conditions that develop during construction that were not foreseen during the design stage; that are needed prior to installation of permanent control features; or that are needed temporarily to control erosion that develops during normal construction practices, but are not associated with permanent control features on the project.

Where erosion may be a problem, schedule and perform clearing and grubbing operations so that grading operations and permanent erosion control features can follow immediately if project conditions permit. Temporary erosion control measures are required if permanent measures cannot immediately follow grading operations. The RPR shall limit the area of clearing and grubbing, excavation, borrow, and embankment operations in progress, commensurate with the Contractor’s capability and progress in keeping the finish grading, mulching, seeding, and other such permanent control measures current with the accepted schedule. If seasonal limitations make such coordination unrealistic, temporary erosion control measures shall be taken immediately to the extent feasible and justified as directed by the RPR.

The Contractor shall provide immediate permanent or temporary pollution control measures to minimize contamination of adjacent streams or other watercourses, lakes, ponds, or other areas of water impoundment as directed by the RPR. If temporary erosion and pollution control measures are required due to the Contractor’s negligence, carelessness, or failure to install permanent controls as a part of the work as scheduled or directed by the RPR, the work shall be performed by the Contractor and the cost shall be incidental to this item.

The RPR may increase or decrease the area of erodible earth material that can be exposed at any time based on an analysis of project conditions.

The erosion control features installed by the Contractor shall be maintained by the Contractor during the construction period.

Provide temporary structures whenever construction equipment must cross watercourses at frequent intervals.

Pollutants such as fuels, lubricants, bitumen, raw sewage, wash water from concrete mixing operations, and other harmful materials shall not be discharged into any waterways, impoundments or into natural or manmade channels.

102-3.4 INSTALLATION, MAINTENANCE AND REMOVAL OF SILT FENCE. Silt fences shall extend a minimum of 16 inches (41 cm) and a maximum of 34 inches (86 cm) above the ground surface. Posts shall be set no more than 10 feet (3 m) on center. Filter fabric shall be cut from a continuous roll to the length required minimizing joints where possible. When joints are necessary, the fabric shall be spliced at a support post with a minimum 12-inch (300-mm) overlap and securely sealed. A trench shall be excavated approximately 4 inches (100 mm) deep by 4 inches (100

mm) wide on the upslope side of the silt fence. The trench shall be backfilled and the soil compacted over the silt fence fabric. The Contractor shall remove and dispose of silt that accumulates during construction and prior to establishment of permanent erosion control. The fence shall be maintained in good working condition until permanent erosion control is established. Silt fence shall be removed upon approval of the RPR.

METHOD OF MEASUREMENT

102-4.1 Temporary erosion and pollution control work required will be performed as scheduled or directed by the

RPR. Completed and accepted work will be measured as follows:

a. Measurement for all other temporary erosion control work required which is not attributed to the

Contractor's negligence, carelessness, or failure to install permanent controls will be performed as scheduled, in compliance with local, state, and national laws and permits, as shown on the plans, or as ordered by the RPR.

Completed and accepted work, not otherwise identified for separate measurement and payment, will be measured as lump sum.

b. Installation and removal of silt fence will be measured by the linear foot.

NPT015, Large Onsite Septic System 3 C-102 Temporary Air and Water Pollution, Soil Erosion, and Siltation Control

102-4.2 Control work performed for protection of construction areas outside the construction limits, such as borrow and waste areas, haul roads, equipment and material storage sites, and temporary plant sites, will not be measured and paid for directly but shall be considered as a subsidiary obligation of the Contractor.

BASIS OF PAYMENT

102-5.1 Accepted quantities of temporary water pollution, soil erosion, and siltation control work ordered by the

RPR and measured as provided in paragraph 102-4.1 will be paid for under:

Bid Item No. 1 Temporary Erosion Control – per Lump Sum

Bid Item No. 2 Installation and Removal of Silt Fence – Per Linear Foot

Where other directed work falls within the specifications for a work item that has a contract price, the units of work shall be measured and paid for at the contract unit price bid for the various items.

REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

Advisory Circulars (AC)

AC 150/5200-33 Hazardous Wildlife Attractants on or Near Airports

AC 150/5370-2 Operational Safety on Airports During Construction

ASTM International (ASTM)

ASTM D6461 Standard Specification for Silt Fence Materials

United States Department of Agriculture (USDA)

FAA/USDA Wildlife Hazard Management at Airports, A Manual for Airport personnel

END OF ITEM C-102

NPT015, Large Onsite Septic System 1 C-105 Mobilization

ITEM C-105 MOBILIZATION

105-1 DESCRIPTION. This item of work shall consist of, but is not limited to, work and operations necessary for the movement of personnel, equipment, material and supplies to and from the project site and other facilities necessary for work on the project except as provided in the contract as separate pay items.

105-2 MOBILIZATION LIMIT. Mobilization shall be limited to 15 percent of the total project cost.

105-3 POSTED NOTICES. Contractor shall post all notices required by the State the work is being performed in. These notices must remain posted until final acceptance of the work by the Owner.

105-4 ENGINEER/RPR FIELD OFFICE. An Engineer/RPR field office is not required.

METHOD OF MEASUREMENT

105-5 BASIS OF MEASUREMENT AND PAYMENT. Based upon the contract lump sum price for “Mobilization” partial payments will be allowed as follows:

a. With first pay request, 25%.

b. When 25% or more of the original contract is earned, an additional 25%.

c. When 50% or more of the original contract is earned, an additional 40%.

d. After Final Inspection, Staging area clean-up and delivery of all Project Closeout materials as required by

Section 90, paragraph 90-11, Contractor Final Project Documentation, the final 10%.

BASIS OF PAYMENT

105-6 PAYMENT WILL BE MADE UNDER:

Bid Item No. 3 Mobilization - per Lump Sum

Bid Item No. A-1 Mobilization - per Lump Sum

Bid Item No. B-1 Mobilization - per Lump Sum

REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

Office of Federal Contract Compliance Programs (OFCCP)

Executive Order 11246, as amended

EEOC-P/E-1 – Equal Employment Opportunity is the Law Poster

United States Department of Labor, Wage and Hour Division (WHD)

WH 1321 – Employee Rights under the Davis-Bacon Act Poster

END OF ITEM C-105

SECTION V

TECHNICAL SPECIFICATIONS

NPT015, Large Onsite Septic System 1 E-960 Septic System

ITEM E-960 SEPTIC SYSTEM PROVISIONS

DESCRIPTION

960-1.1 GENERAL.

This item is intended to provide equipment and installation of a new Large Onsite Septic System (L.O.S.S).

Construction of the new septic system procurement, installation, and commissioning in conformance with the project specifications and drawings. The system shall include pumps, electrical systems and control panels, piping mechanical systems, and all other appurtenances required to render the system fully functional. In addition, the contractor shall abandon existing septic tanks associated with the existing FBO/FedEx buildings and Coast Guard.

a) It is the intent and meaning of the Drawings and Specifications that the Contractor shall provide a septic system installation that is complete and includes all items and appurtenances necessary to provide a “turn-key” (i.e., fully operable upon completion of the Contract) satisfying the specifications provided herein.

b) The Contractor is required to coordinate with the Engineer for the approval of submittals, plans, schedules, installations and construction performed under these provisions and shall request the approval of the

Engineer prior to beginning work.

c) All septic system material submittals will be considered for use provided they meet the performance requirements described herein and industry standards for ease of maintenance and general durability.

960-2.1 SUBMITTALS.

a) Project Schedule. The Contractor shall submit a project schedule that identifies all milestones associated with the sourcing, design, fabrication, transport, delivery, construction, and installation of systems and components for the septic system to the Engineer for review and acceptance.

b) Manufacturer Specifications. Contractor shall submit to Engineer cut sheets that provide manufacturer specifications and product information as to the dimensions, materials, and other information required to define compliance with the specifications.

c) Shop Drawings. Contractor shall furnish to Engineer one (1) electronic copy of shop drawings or plans that illustrate the items listed below. The electronic copy shall be submitted in AutoCad® format or portable document format (PDF). Drawings shall be stamped and sealed by a Professional Engineer registered in the

State where the work is being constructed, as required. Drawings shall be provided for, at a minimum, the following:

Proposed septic system layout with tanks, modules, and appurtenant components with dimensions of components and spacing between components in compliance with all code requirements and regulations.

Piping schematic, and flow diagrams, that illustrate flow directions, control sequences, etc.

Piping layout with callouts for electrical service, communication, control, and data connection locations.

d) As-built Drawings. Contractor shall maintain a set of as-built drawings on the job site as required by the

Contract. Contractor shall mark on the as-built drawings any alterations. Additions shall be marked in green and deletions in red. As-built drawings shall be kept available for review at all time. Copies of as-built drawings shall be provided to Owner and Engineer upon project completion.

e) Testing Records. The Contractor shall furnish to the Engineer all testing records as necessary to demonstrate that products and systems furnished are in compliance with the drawings, specifications and satisfy applicable codes and regulations.

f) Operations and Maintenance. Prior to project completion Contractor shall furnish to Owner one (1) draft electronic (PDF or similar) copy of a comprehensive Operation and Maintenance manual for the septic system and all appurtenances. Once review comments are addressed, one electronic (PDF) file of individual

Operation and Maintenance manuals shall be provided to the Engineer and Owner along with manufacturer specifications.

NPT015, Large Onsite Septic System 2 E-960 Septic System

EQUIPMENT AND MATERIALS

960-3.1 SEPTIC SYSTEM.

Equipment and materials for the septic system shall meet the requirements shown on the construction drawings.

CONSTRUCTION METHODS

960-4.1 EXECUTION.

The entire septic system (i.e., each separate component and the associated electronic and physical connections) shall be installed in strict accordance with manufacturer’s recommendations, industry standards, and applicable fire safety and environmental codes. All state and local permits shall be obtained prior to installation. Refer to the construction drawings for additional information.

960-4.2 ABANDON EXISTING SEPTIC TANK

Existing septic tanks must be pumped, crushed, and backfilled with rock in accordance with County and State of

Oregon requirements. Contractor shall submit certificate of abandonment and pump receipt.

METHOD OF MEASUREMENT

960-5.1 ABANDON SEPTIC TANKS

Abandonment of the existing septic tanks shall all be measured as a lump sum for listed bid item completed and accepted by the Engineer.

960-5.2 FBO SEPTIC IMPROVEMENTS

Procurement, construction, installation, and commissioning of the FBO Septic Improvements shall all be measured as a lump sum for each listed bid item completed and accepted by the Engineer.

960-5.3 FEDEX SEPTIC IMPROVEMENTS

Procurement, construction, installation, and commissioning of the FedEx Septic Improvements shall all be measured as a lump sum for each listed bid item completed and accepted by the Engineer.

960-5.4 FINAL TREATMENT IMPROVEMENTS

Procurement, construction, installation, and commissioning of the Final Treatment Improvements shall all be measured as a lump sum for each listed bid item completed and accepted by the Engineer.

960-5.5 COAST GUARD SEPTIC IMPROVEMENTS

Procurement, construction, installation, and commissioning of the Coast Guard Septic Improvements shall all be measured as a lump sum for each listed bid item completed and accepted by the Engineer.

960-5.6 SEPTIC TRENCH

Trenching for septic piping shall be measured by the linear feet for separate categories of trench as determined by the conditions in which the trenching is performed: whether in paved area or in non-paved areas. Trenching within

Septic Improvement Areas shall not be measured for payment.

960-5.7 2-INCH PVC SEPTIC

The length of pipe shall be the number of linear feet of pipe in place, measured along the centerline of the pipe from end or face of structure to the end or inside face of structure, whichever is applicable. All fittings shall be included in the footage as typical pipe sections in the pipeline being measured. PVC pipe within Septic Improvement Areas shall not be measured for payment.

NPT015, Large Onsite Septic System 3 E-960 Septic System

960-5.8 PAVEMENT REMOVAL & REPAIR

The unit of measurement for Pavement Removal & Repair shall be the number of square yards removed and replaced by the Contractor. Any pavement removed outside the limits of removal because the pavement was damaged by negligence on the part of the Contractor shall not be included in the measurement for payment.

BASIS OF PAYMENT

960-6.1 ABANDON SEPTIC TANKS

Payment will be made under the lump sum unit price for all septic tanks abandoned. This price shall be full compensation for pump out of tanks, crushing of tanks, rock backfill, and for all labor, equipment, tools, and incidentals necessary to complete the item.

960-6.2 FBO SEPTIC IMPROVEMENTS

Payment will be made under the lump sum unit price for the FBO Septic Improvements as a complete unit that is installed in place, by the Contractor and accepted by the Engineer. This price shall be full compensation for installation of all components given in the FBO parts list; installation of vaults, piping, pumps, tanks, valves, and cleanouts within the FBO Area; trenching, excavation, backfilling, and placing of the material; and for all labor, equipment, tools, and incidentals necessary to complete the item. Parts lists and limits of the FBO Area are defined in the plans The lump sum shall be paid. per the following breakdown:

1. 40% of the lump sum to be paid upon confirmation that the system components order has been executed, following the Engineer’s approval of all required submittals.

2. 50% of the lump sum to be paid upon satisfactory installation of the entire system, after start-up and testing is completed and proof of proper function is determined by the Engineer and Owner.

3. Remaining 10% of the lump sum to be paid upon agency/permit closeout (if required), submittal of

Operations and Maintenance Manuals, and proof of final payment to the suppliers.

950-6.2 FEDEX SEPTIC IMPROVEMENTS

Payment will be made under the lump Sum unit price for the FedEx Septic Improvements as a complete unit that is installed in place, by the Contractor and accepted by the Engineer. This price shall be full compensation for installation of all components given in the FedEx parts list; installation of vaults, piping, pumps, tanks, valves, and cleanouts within the FedEx Area; trenching, excavation, backfilling, and placing of the material; and for all labor, equipment, tools, and incidentals necessary to complete the item. Parts lists and limits of the FedEx Area are defined in the plans. The lump sum shall be paid per the following breakdown:

1. 40% of the lump sum to be paid upon confirmation that the system components order has been executed, following the Engineer’s approval of all required submittals.

2. 50% of the lump sum to be paid upon satisfactory installation of the entire system, after start-up and testing is completed and proof of proper function is determined by the Engineer and Owner.

3. Remaining 10% of the lump sum to be paid upon agency/permit closeout (if required), submittal of

Operations and Maintenance Manuals, and proof of final payment to the suppliers.

950-6.3 FINAL TREATMENT IMPROVEMENTS

Payment will be made under the lump sum unit price for the Final Treatment Improvements as a complete unit that is installed in place, by the Contractor and accepted by the Engineer. This price shall be full compensation for installation of all components given in the Final Treatment parts list; installation of vaults, piping, drip lines, pumps, tanks, valves, and cleanouts within the Final Treatment Area; trenching, excavation, backfilling, and placing of the material; and for all labor, equipment, tools, and incidentals necessary to complete the item. Parts lists and limits of the Final Treatment Area are defined in the plans. The lump sum shall be paid per the following breakdown:

1. 40% of the lump sum to be paid upon confirmation that the system components order has been executed, following the Engineer’s approval of all required submittals.

NPT015, Large Onsite Septic System 4 E-960 Septic System

2. 50% of the lump sum to be paid upon satisfactory installation of the entire system, after start-up and testing is completed and proof of proper function is determined by the Engineer and Owner.

3. Remaining 10% of the lump sum to be paid upon agency/permit closeout (if required), submittal of

Operations and Maintenance Manuals, and proof of final payment to the suppliers.

950-6.4 COAST GUARD SEPTIC IMPROVEMENTS

Payment will be made under the lump sum unit price for the Coast Guard Septic Improvements as a complete unit that is installed in place, by the Contractor and accepted by the Engineer. This price shall be full compensation for installation of all components given in the Coast Guard parts list; installation of vaults, piping, pumps, tanks, valves, and cleanouts within the Coast Guard Area; excavation, trenching, backfilling, and placing of the material; and for all labor, equipment, tools, and incidentals necessary to complete the item. Parts lists and limits of the Coast Guard

Area are defined in the plans. The lump sum shall be paid per the following breakdown:

1. 40% of the lump sum to be paid upon confirmation that the system components order has been executed, following the Engineer’s approval of all required submittals.

2. 50% of the lump sum to be paid upon satisfactory installation of the entire system, after start-up and testing is completed and proof of proper function is determined by the Engineer and Owner.

3. Remaining 10% of the lump sum to be paid upon agency/permit closeout (if required), submittal of

Operations and Maintenance Manuals, and proof of final payment to the suppliers.

960-6.5 SEPTIC TRENCH, PAVED

Payment will be made at the contract unit price per linear foot for trenching and includes payment for excavation, pipe bedding, and backfill. This price shall be full compensation for furnishing all materials and for all preparation, and installation of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.

960-6.6 SEPTIC TRENCH, NON-PAVED

Payment will be made at the contract unit price per linear foot for trenching and includes payment for excavation, pipe bedding, and backfill. This price shall be full compensation for furnishing all materials and for all preparation, and installation of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.

960-6.7 2-INCH PVC - SEPTIC

Payment will be made at the contract unit price per linear foot for pipe of the type, class, and size designated, and includes payment for pipe, fittings, cleanouts, and required check valves, and concrete risers. This price shall be full compensation for furnishing all materials and for all preparation, and installation of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.

960-6.8 PAVEMENT REMOVAL & REPAIR

Payment shall be made at contract unit price per square yard for pavement removal & repair. This price shall be full compensation for saw cutting, asphalt removal and disposal, excavation, aggregate base, tack coat, and new asphalt for all preparation, hauling, and placing of the material and for all labor, equipment, tools, and incidentals necessary to complete this item.

Payment will be made under:

Bid Item No. 4 Abandon Septic Tanks - per Lump Sum

Bid Item No. A-2 Abandon Septic Tanks - per Lump Sum

Bid Item No. 5 FBO Septic Improvements - per Lump Sum

Bid Item No. 6 FedEx Septic Improvements - per Lump Sum

Bid Item No. 7 Final Treatment Improvements - per Lump Sum

NPT015, Large Onsite Septic System 5 E-960 Septic System

Bid Item No. A-3 Coast Guard Septic Improvements - per Lump Sum

Bid Item No. 8 Septic Trench, Paved - per Linear Foot

Bid Item No. 9 Septic Trench, Non-Paved - per Linear Foot

Bid Item No. A-4 Septic Trench, Non-Paved - per Linear Foot

Bid Item No. B-2 Septic Trench, Non-Paved - per Linear Foot

Bid Item No. 10 2-Inch PVC Septic - per Linear Foot

Bid Item No. A-5 2-Inch PVC Septic - per Linear Foot

Bid Item No. B-3 2-Inch PVC Septic - per Linear Foot

Bid Item No. 11 Pavement Removal & Repair - per Square Yards

Bid Item No. A-6 Pavement Removal & Repair - per Square Yards

NPT015, Large Onsite Septic System 1 P-152 Excavation, Subgrade, and Embankment

ITEM P-152 EXCAVATION, SUBGRADE, AND EMBANKMENT

DESCRIPTION

152-1.1 This item covers excavation, disposal, placement, and compaction of all materials within the limits of the work required to construct trenches, underground tanks, or other purposes in accordance with these specifications and in conformity to the dimensions and typical sections shown on the plans. This specification does not apply to drip fields; soils beneath drip fields shall be compacted per manufacturer requirements.

The Contractor shall furnish, place, and maintain all supports and shoring that may be required for the sides of the excavations; and all pumping or other approved measures for the removal or exclusion of water, including storm water, reaching the site from any source so as to prevent damage to the site. Slopes on the sides of temporary excavations shall be such as to ensure safe execution of the work in accordance with applicable governmental requirements and regulations.

152-1.2 CLASSIFICATION. All material excavated shall be classified as defined below:

a. Unclassified excavation. Unclassified excavation shall consist of the excavation and disposal of all material, regardless of its nature.

152-1.3 UNSUITABLE EXCAVATION. Unsuitable material shall be disposed of offsite. Materials containing vegetable or organic matter, such as muck, peat, organic silt, or sod shall be considered unsuitable for use in embankment construction. Material suitable for topsoil may be used on the embankment slope when approved by the RPR.

Unsuitable material is defined as material the Engineer determines to be incapable of being compacted to specified density using ordinary methods at optimum moisture.

Excessive moisture in the material is not, by itself, sufficient cause for determining that the material is unsuitable.

In-place drying techniques shall be employed prior to defining the material as unsuitable. In-place drying methods shall consist of windrowing, discing, turning, and otherwise manipulating the material to achieve drying and compaction. Vibratory or steel drum compaction equipment and rubber-tired excavation equipment shall not be used in unstable areas unless approved by the Engineer. No separate measurement or payment will be made for in-place drying.

CONSTRUCTION METHODS

152-2.1 GENERAL. Before beginning excavation, grading, and embankment operations in any area, the area shall be completelystripped, approximately, 2 to 4 inches in depth, to remove all vegetation. Contractor shall verify depth of stripping with RPR prior to beginning work.

The suitability of material to be placed in embankments shall be subject to approval by the RPR. All unsuitable material shall be disposed of offsite.

When the Contractor’s excavating operations encounter artifacts of historical or archaeological significance, the operations shall be temporarily discontinued and the RPR notified per Section 70, paragraph 70-20. At the direction of the RPR, the Contractor shall excavate the site in such a manner as to preserve the artifacts encountered and allow for their removal. Such excavation will be paid for as extra work.

Areas outside of the limits of the pavement areas where the top layer of soil has become compacted by hauling or other Contractor activities shall be scarified and disked to a depth of 4 inches , to loosen and pulverize the soil.

Stones or rock fragments larger than 4 inches in their greatest dimension will not be permitted in the top 6 inches of the subgrade.

NPT015, Large Onsite Septic System 2 P-152 Excavation, Subgrade, and Embankment

If it is necessary to interrupt existing surface drainage, sewers or under-drainage, conduits, utilities, or similar underground structures, the Contractor shall be responsible for and shall take all necessary precautions to preserve them or provide temporary services. When such facilities are encountered, the Contractor shall notify the RPR, who shall arrange for their removal if necessary. The Contractor, at their own expense, shall satisfactorily repair or pay the cost of all damage to such facilities or structures that may result from any of the Contractor’s operations during the period of the contract.

a. Blasting. Blasting shall not be allowed.

152-2.2 EXCAVATION. No excavation shall be started until the work has been staked out by the Contractor and the RPR has obtained from the Contractor, the survey notes of the elevations and measurements of the ground surface. The Contractor and RPR shall agree that the original ground lines shown on the original topographic mapping are accurate, or agree to any adjustments made to the original ground lines.

All areas to be excavated shall be stripped of vegetation and topsoil. Topsoil shall be stockpiled for future use in areas designated on the plans or by the RPR. All suitable excavated material shall be used in the formation of embankment, subgrade, or other purposes as shown on the plans. All unsuitable material shall be disposed of as shown on the plans.

The grade shall be maintained so that the surface is well drained at all times.

When the volume of the excavation exceeds that required to construct the embankments to the grades as indicated on the plans, the excess shall be used to grade the areas of ultimate development or disposed as directed by the RPR. When the volume of excavation is not sufficient for constructing the embankments to the grades indicated, the deficiency shall be obtained from borrow areas.

a. Selective grading. When selective grading is indicated on the plans, the more suitable material designated by the RPR shall be used in constructing the embankment or in capping the pavement subgrade. If, at the time of excavation, it is not possible to place this material in its final location, it shall be stockpiled in approved areas until it can be placed. The more suitable material shall then be placed and compacted as specified. Selective grading shall be considered incidental to the work involved. The cost of stockpiling and placing the material shall be included in the various pay items of work involved.

b. Undercutting. Rock, shale, hardpan, loose rock, boulders, or other material unsatisfactory for safety areas, subgrades, roads, shoulders, or any areas intended for turf shall be excavated to a minimum depth of 12 inches below the subgrade or to the depth specified by the RPR. Muck, peat, matted roots, or other yielding material, unsatisfactory for subgrade foundation, shall be removed to the depth specified. Unsuitable materials shall be disposed of off Airport property. The excavated area shall be backfilled with suitable material obtained from the grading operations or borrow areas and compacted to specified densities. Undercutting in areas of new pavement construction shall be backfilled with base material meeting all requirements of the aggregate base per Oregon

Standard Specifications for construction (OSS), current edition, Section 00641. . Where rock cuts are made, backfill with select material. Any pockets created in the rock surface shall be drained in accordance with the details shown on the plans.

c. Over-break. Over-break, including slides, is that portion of any material displaced or loosened beyond the finished work as planned or authorized by the RPR. All over-break shall be graded or removed by the Contractor and disposed of as directed by the RPR. The RPR shall determine if the displacement of such material was unavoidable and their own decision shall be final. Payment will not be made for the removal and disposal of over-break that the RPR determines as avoidable. Unavoidable over-break will be classified as “Unclassified Excavation.”

d. Removal of utilities. The removal of existing structures and utilities required to permit the orderly progress of work will be accomplished by the Contractor if indicated on the plans. All existing foundations shall be excavated at least 2 feet below the top of subgrade or as indicated on the plans, and the material disposed of as directed by the RPR. All foundations thus excavated shall be backfilled with suitable material and compacted as specified for embankment or as shown on the plans.

NPT015, Large Onsite Septic System 3 P-152 Excavation, Subgrade, and Embankment

152-2.3 BORROW EXCAVATION. Borrow areas are not required.

152-2.4 DRAINAGE EXCAVATION. Not Used.

152-2.5 PREPARATION OF CUT AREAS OR AREAS WHERE EXISTING PAVEMENT HAS BEEN REMOVED. In those areas on which a subbase or base course is to be placed, the top 12 inches of subgrade shall be compacted to not less than 95 % of maximum density for non-cohesive soils, and 95% of maximum density…